{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "979252490",
    "entityType": "User",
    "nonce": "0x39d172c34a796cb75e702d954d16d6caa9acf2fddee3e17d48f85b2e3ccbcb40",
    "signature": "0x250dddbcbc5d716113d305285171773357a07bb1ed2c3a88495a7333cc14389675d9a964ec47088d776249aa7e6938b7217407344a9f6d5f5ad2e98da6195ed01c",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}